发明名称 |
Hardware implementation of a decimating finite impulse response filter |
摘要 |
The invention provides apparatus and methods for generating the coefficients of a finite impulse response digital filter used in signal sample rate conversion. Sequence generation circuitry provides a discrete-time sequence x(n) that is coupled to a plurality of cascaded discrete-time integrators that generate the filter coefficients h(n). Bit serial and interleaved bit serial implementations are described that provide efficient coefficient generators. The described apparatus and methods also may be used to efficiently implement a finite impulse response digital filter for an oversampling analog-to-digital converter.
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申请公布号 |
US6603812(B1) |
申请公布日期 |
2003.08.05 |
申请号 |
US19980135229 |
申请日期 |
1998.08.17 |
申请人 |
LINEAR TECHNOLOGY CORPORATION |
发明人 |
OPRESCU FLORIN A. |
分类号 |
H03H17/06;(IPC1-7):H03H7/30;H03H7/40;H03K5/159 |
主分类号 |
H03H17/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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